<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
    <meta name="description" content="Load GeoJSON or TopoJSON data and apply custom styling.">
    <meta name="cesium-sandcastle-labels" content="Showcases, Tutorials, DataSources">
    <title>Cesium Demo</title>
    <script type="text/javascript" src="../Sandcastle-header.js"></script>
    <script type="text/javascript" src="../../../Build/CesiumUnminified/Cesium.js" nomodule></script>
    <script type="module" src="../load-cesium-es6.js"></script>
</head>
<body class="sandcastle-loading" data-sandcastle-bucket="bucket-requirejs.html">
<style>
    @import url(../templates/bucket.css);
</style>
<div id="cesiumContainer" class="fullSize"></div>
<div id="loadingOverlay"><h1>Loading...</h1></div>
<div id="toolbar"></div>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
    'use strict';
//Sandcastle_Begin
var viewer = new Cesium.Viewer('cesiumContainer');

//Example 1: Load with default styling.
Sandcastle.addDefaultToolbarButton('Default styling', function() {
    viewer.dataSources.add(Cesium.GeoJsonDataSource.load('../../SampleData/ne_10m_us_states.topojson'));
});

//Example 2: Load with basic styling options.
Sandcastle.addToolbarButton('Basic styling', function() {
    viewer.dataSources.add(Cesium.GeoJsonDataSource.load('../../SampleData/ne_10m_us_states.topojson', {
        stroke: Cesium.Color.HOTPINK,
        fill: Cesium.Color.PINK.withAlpha(0.5),
        strokeWidth: 3
    }));
});

//Example 3: Apply custom graphics after load.
Sandcastle.addToolbarButton('Custom styling', function() {
    //Seed the random number generator for repeatable results.
    Cesium.Math.setRandomNumberSeed(0);

    var promise = Cesium.GeoJsonDataSource.load('../../SampleData/ne_10m_us_states.topojson');
    promise.then(function(dataSource) {
        viewer.dataSources.add(dataSource);

        //Get the array of entities
        var entities = dataSource.entities.values;

        var colorHash = {};
        for (var i = 0; i < entities.length; i++) {
            //For each entity, create a random color based on the state name.
            //Some states have multiple entities, so we store the color in a
            //hash so that we use the same color for the entire state.
            var entity = entities[i];
            var name = entity.name;
            var color = colorHash[name];
            if (!color) {
                color = Cesium.Color.fromRandom({
                    alpha : 1.0
                });
                colorHash[name] = color;
            }

            //Set the polygon material to our random color.
            entity.polygon.material = color;
            //Remove the outlines.
            entity.polygon.outline = false;

            //Extrude the polygon based on the state's population.  Each entity
            //stores the properties for the GeoJSON feature it was created from
            //Since the population is a huge number, we divide by 50.
            entity.polygon.extrudedHeight = entity.properties.Population / 50.0;
        }
    }).otherwise(function(error){
        //Display any errrors encountered while loading.
        window.alert(error);
    });
});

//Reset the scene when switching demos.
Sandcastle.reset = function() {
    viewer.dataSources.removeAll();

    //Set the camera to a US centered tilted view and switch back to moving in world coordinates.
    viewer.camera.lookAt(Cesium.Cartesian3.fromDegrees(-98.0, 40.0), new Cesium.Cartesian3(0.0, -4790000.0, 3930000.0));
    viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY);
};
//Sandcastle_End
    Sandcastle.finishedLoading();
}
if (typeof Cesium !== 'undefined') {
    window.startupCalled = true;
    startup(Cesium);
}
</script>
</body>
</html>
